What is Kedge Anchor?
A kedge anchor, sometimes called a secondary or auxiliary anchor, is a backup typically sized at about 50 to 75 percent of the primary anchor’s weight. It’s carried for emergencies, heavy weather requiring dual anchors, or for kedging off when the vessel runs aground.
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What it is
A kedge anchor, sometimes called a secondary or auxiliary anchor, is a backup typically sized at about 50 to 75 percent of the primary anchor’s weight. It’s carried for emergencies, heavy weather requiring dual anchors, or for kedging off when the vessel runs aground. The kedge is often a different design than the primary. For example, pairing a plow as the main anchor with a Danforth or Fortress as the kedge. Many cruisers keep it rigged with its own rode or ready to attach to spare rode quickly when needed.
What it does
The kedge anchor serves several functions. It can act as a second anchor during strong winds to reduce swinging and distribute load, or it can be used to pull the vessel free when aground by setting it in deeper water and winching toward it (a maneuver known as “kedging” or “warping”). In storm conditions, many operators use a dual-anchor setup, positioning two anchors in a V-pattern roughly 45 to 60 degrees apart to share load and limit yaw. In other cases, two anchors may be rigged in tandem on the same rode for maximum holding strength. A kedge can also be deployed astern to restrict the vessel’s swing and keep it oriented safely in tight or shallow anchorages.
Why it matters
A kedge anchor provides essential redundancy when the primary fails or drags. Having one ready to deploy within minutes can prevent grounding or collision during a storm. Many vessels carry a secondary anchor but store it under gear, making it inaccessible when conditions deteriorate. Running aground without a kedge anchor ready, especially in adverse conditions, can lead to serious hull damage. In crowded anchorages or shifting conditions, deploying a kedge may be the only practical way to prevent contact with other vessels.
General Maintenance
Keep the kedge anchor and its gear organized and easily accessible. Inspect it at least annually or before extended cruising. Verify that sufficient rode, typically 200 feet of chain or line, is available and that all shackles, swivels, and connections are secure and free of corrosion. Practice deploying and retrieving the kedge under calm conditions so the crew is familiar with the procedure and coordination required. Store it in a location where it can be deployed in under ten minutes, even at night or in rough weather.
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